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authorMichael Chan <mchan@broadcom.com>2007-12-25 08:28:09 +0300
committerDavid S. Miller <davem@davemloft.net>2008-01-29 02:00:05 +0300
commit7ffc49a6ee92b7138c2ee28073a8e10e58335d62 (patch)
tree6421d389980f3a71b1b53ed6e1548eb08dbf1226 /include/linux/if_ether.h
parent21371f768bf7127ee45bfaadd17899df6a439e8f (diff)
downloadlinux-7ffc49a6ee92b7138c2ee28073a8e10e58335d62.tar.xz
[ETH]: Combine format_addr() with print_mac().
print_mac() used many most net drivers and format_addr() used by net-sysfs.c are very similar and they can be intergrated. format_addr() is also identically redefined in the qla4xxx iscsi driver. Export a new function sysfs_format_mac() to be used by net-sysfs, qla4xxx and others in the future. Both print_mac() and sysfs_format_mac() call _format_mac_addr() to do the formatting. Changed print_mac() to use unsigned char * to be consistent with net_device struct's dev_addr. Added buffer length overrun checking as suggested by Joe Perches. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/if_ether.h')
-rw-r--r--include/linux/if_ether.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h
index cc002cbbdc26..7a1e011b8a2c 100644
--- a/include/linux/if_ether.h
+++ b/include/linux/if_ether.h
@@ -124,12 +124,14 @@ int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr);
extern struct ctl_table ether_table[];
#endif
+extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len);
+
/*
* Display a 6 byte device address (MAC) in a readable format.
*/
-#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
-extern char *print_mac(char *buf, const u8 *addr);
-#define DECLARE_MAC_BUF(var) char var[18] __maybe_unused
+extern char *print_mac(char *buf, const unsigned char *addr);
+#define MAC_BUF_SIZE 18
+#define DECLARE_MAC_BUF(var) char var[MAC_BUF_SIZE] __maybe_unused
#endif